16642542873 has 8 divisors (see below), whose sum is σ = 24207335136. Its totient is φ = 10086389600.

The previous prime is 16642542859. The next prime is 16642542877. The reversal of 16642542873 is 37824524661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16642542873 - 2⁸ = 16642542617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16642542877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252159708 + ... + 252159773.

It is an arithmetic number, because the mean of its divisors is an integer number (3025916892).

Almost surely, 2^16642542873 is an apocalyptic number.

It is an amenable number.

16642542873 is a deficient number, since it is larger than the sum of its proper divisors (7564792263).

16642542873 is a wasteful number, since it uses less digits than its factorization.

16642542873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504319495.

The product of its digits is 1935360, while the sum is 48.

The spelling of 16642542873 in words is "sixteen billion, six hundred forty-two million, five hundred forty-two thousand, eight hundred seventy-three".